tokyo-jp.z-sched.com has an A (IPv4) record (13.114.96.101) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
A timeout was experienced while communicating with tokyo-jp.z-sched.com/13.114.96.101: Get http://tokyo-jp.z-sched.com/.well-known/acme-challenge/letsdebug-test: context deadline exceeded
Trace:
@0ms: Making a request to http://tokyo-jp.z-sched.com/.well-known/acme-challenge/letsdebug-test (using initial IP 13.114.96.101)
@0ms: Dialing 13.114.96.101
@10000ms: Experienced error: context deadline exceeded
A test authorization for tokyo-jp.z-sched.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://tokyo-jp.z-sched.com/.well-known/acme-challenge/0mt_yaZSt9jb5i4b-cIA1VJdH1sYQMXDwq7B1bJORCs: Timeout during connect (likely firewall problem)
Requests made to the domain
Request to: tokyo-jp.z-sched.com/13.114.96.101, Result: [Address Type=IPv4,Server=,HTTP Status=0], Issue: ANotWorking
Trace:
@0ms: Making a request to http://tokyo-jp.z-sched.com/.well-known/acme-challenge/letsdebug-test (using initial IP 13.114.96.101)
@0ms: Dialing 13.114.96.101
@10000ms: Experienced error: context deadline exceeded
A and AAAA records found for this domain
tokyo-jp.z-sched.com. 0 IN A 13.114.96.101
Challenge update failures for tokyo-jp.z-sched.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/27499011
acme: error code 400 "urn:ietf:params:acme:error:connection": Fetching http://tokyo-jp.z-sched.com/.well-known/acme-challenge/0mt_yaZSt9jb5i4b-cIA1VJdH1sYQMXDwq7B1bJORCs: Timeout during connect (likely firewall problem)
The IANA public suffix is the TLD of the Registered Domain
The TLD for tokyo-jp.z-sched.com is: com
The current status.io status for Let's Encrypt
Operational